Function libstrophe_sys_bindgen::xmpp_handler_add

pub unsafe extern "C" fn xmpp_handler_add(
    conn: *mut xmpp_conn_t, 
    handler: xmpp_handler, 
    ns: *const c_char, 
    name: *const c_char, 
    type_: *const c_char, 
    userdata: *mut c_void
)